在线语音验证码

怼烎@ 2022-05-14 13:39 111阅读 0赞

# 一、基本数据准备 #

## 1.1 语音材料 ##

最开始采用m4a格式的录音，文件能合并，但是无法正常播放

![70][]

## 1.2  获取绝对路径和生成验证码 ##

/**
         * 生成验证码
         * @param num
         * @return
         */
        public static String genCode(int num) {
            StringBuffer sf = new StringBuffer();
            Random random = new Random();
            for (int i = 0; i < num; i++) {
                int r = random.nextInt(9);
                sf.append(r);
            }
            return sf.toString();
        }
    
        /**
         * 获取绝对路径
         * @param filepath
         * @return
         */
        public static String getRealPath(String filepath) {
            String path = ClassLoader.getSystemResource("").getPath();
    
            if (filepath.endsWith("/") || filepath.endsWith("\\")) {
                return path + filepath;
            }
            return path + "/" + filepath;
        }

## 1.3 所需依赖 ##

<dependencies>
            <dependency>
                <groupId>org.springframework.boot</groupId>
                <artifactId>spring-boot-starter-data-jpa</artifactId>
            </dependency>
            <dependency>
                <groupId>org.springframework.boot</groupId>
                <artifactId>spring-boot-starter-web</artifactId>
            </dependency>
    
            <dependency>
                <groupId>org.springframework.boot</groupId>
                <artifactId>spring-boot-devtools</artifactId>
                <scope>runtime</scope>
            </dependency>
            <dependency>
                <groupId>mysql</groupId>
                <artifactId>mysql-connector-java</artifactId>
                <scope>runtime</scope>
            </dependency>
            <dependency>
                <groupId>org.projectlombok</groupId>
                <artifactId>lombok</artifactId>
                <optional>true</optional>
            </dependency>
            <dependency>
                <groupId>org.apache.commons</groupId>
                <artifactId>commons-lang3</artifactId>
            </dependency>
            <dependency>
                <groupId>org.apache.tomcat.embed</groupId>
                <artifactId>tomcat-embed-jasper</artifactId>
            </dependency>
            <dependency>
                <groupId>javax.servlet</groupId>
                <artifactId>javax.servlet-api</artifactId>
            </dependency>
            <dependency>
                <groupId>javax.servlet</groupId>
                <artifactId>jstl</artifactId>
            </dependency>
            <dependency>
                <groupId>taglibs</groupId>
                <artifactId>standard</artifactId>
                <version>1.1.2</version>
            </dependency>
            <dependency>
                <groupId>org.springframework.boot</groupId>
                <artifactId>spring-boot-starter-test</artifactId>
                <scope>test</scope>
            </dependency>
        </dependencies>

# 二、前后端实现 #

## 2.1 页面实现 ##

<%@ page contentType="text/html;charset=UTF-8" language="java" %>
    <html>
    <head>
        <title>Title</title>
    </head>
    <body>
    <audio src="/data/end.mp3?num=<%=Math.random()%>"  autoplay="autoplay" ></audio>
    <a href="/code">获取语音验证码</a>
    </body>
    </html>

## 2.2 controller层 ##

/**
     * @author sunyiran
     * @date 2018-09-08
     */
    @Controller
    @RequestMapping("/code")
    public class CodeController {
        @GetMapping
        public String getCode() throws IOException {
            String code = CodeUtils.genCode(4);
            CodeUtils.getCodeM4a(code);
            return "index";
        }
    }

##          2.3 生成语音文件 ##

public static File getCodeM4a(String code) throws IOException {
            File file = new File(getRealPath("/static/data/end.mp3"));
            if (file.exists()) {
                file.delete();
                file.createNewFile();
            }
            FileOutputStream fos = new FileOutputStream(file);
            FileInputStream fis1 = new FileInputStream(getRealPath("/static/data/base.mp3"));
    
            Vector<FileInputStream> v = new Vector<>();
            v.add(fis1);
    
            char[] chars = code.toCharArray();
            for (char name : chars) {
                FileInputStream fis = new FileInputStream(getRealPath("/static/data/"+name+".mp3"));
                v.add(fis);
            }
            Enumeration<FileInputStream> en = v.elements();
            SequenceInputStream sis = new SequenceInputStream(en);
            int b;
            while((b = sis.read())!= -1)
            {
                fos.write(b);
            }
            sis.close();
            fos.close();
            fis1.close();
    
            return file;
        }

[70]: /images/20220514/009958f3b3cf4fcda160446e02720465.png